ACI Concrete Field Testing Technician-
Grade I {latest 2026 -2027 update}
questions and answers 100% correct
The sensor of the temperature measuring device shall be submerged a minimum of
_____ in. [_____mm] into the freshly mixed concrete. - correct answer 3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring temperature of
freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. -
correct answer 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____, or whenever there is a
question of _____. - correct answer Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or False? -
correct answer True
,The temperature of concrete may be measured in a wall form. True of False - correct
answer True
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature. True of False? - correct answer False
What must be done to the sample container prior to sampling the concrete? - correct
answer Dampen (with water)
What must be done to the concrete surrounding the temperature measuring device
after the device is submerged in the fresh concrete. - correct answer Gently press the
concrete around the temperature measuring device at the surface of the concrete
,How long must the temperature measuring device remain in the freshly mixed
concrete? - correct answer At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is required? - correct answer
Reporting of temperature
The temperature of concrete is reported to the nearest _____ degrees F [_____ C] -
correct answer 1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the temperature of concrete? -
correct answer Verify conformance to a specified requirement for temperature of
concrete
A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of
False? - correct answer False
, The sample of concrete used for temperature determination must be rodded 25 times.
True or False? - correct answer False
Sampling by this method is required when tests are to be made to determine _____ with
specification requirements. - correct answer Compliance
This method covers sampling from four types of mixtures which are _____, _____, _____,
and _____. - correct answer Stationary mixers, paving mixers, revolving drum mixers,
and open top mixers
The maximum allowable time between obtaining the first and final portions of a
composite sample is _____ minutes. - correct answer 15
Grade I {latest 2026 -2027 update}
questions and answers 100% correct
The sensor of the temperature measuring device shall be submerged a minimum of
_____ in. [_____mm] into the freshly mixed concrete. - correct answer 3 in. [75 mm]
The temperature measuring device shall have a capacity of measuring temperature of
freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. -
correct answer 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C]
The temperature measuring device shall be calibrated _____, or whenever there is a
question of _____. - correct answer Annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or False? -
correct answer True
,The temperature of concrete may be measured in a wall form. True of False - correct
answer True
A composite sample of concrete is required even if the only purpose for obtaining the
sample is to determine temperature. True of False? - correct answer False
What must be done to the sample container prior to sampling the concrete? - correct
answer Dampen (with water)
What must be done to the concrete surrounding the temperature measuring device
after the device is submerged in the fresh concrete. - correct answer Gently press the
concrete around the temperature measuring device at the surface of the concrete
,How long must the temperature measuring device remain in the freshly mixed
concrete? - correct answer At least 2 minutes but not more than 5 minutes
After the temperature of the concrete is read, what is required? - correct answer
Reporting of temperature
The temperature of concrete is reported to the nearest _____ degrees F [_____ C] -
correct answer 1 degree F [0.5 C]
According to ASTM C1064, what is one reason to take the temperature of concrete? -
correct answer Verify conformance to a specified requirement for temperature of
concrete
A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of
False? - correct answer False
, The sample of concrete used for temperature determination must be rodded 25 times.
True or False? - correct answer False
Sampling by this method is required when tests are to be made to determine _____ with
specification requirements. - correct answer Compliance
This method covers sampling from four types of mixtures which are _____, _____, _____,
and _____. - correct answer Stationary mixers, paving mixers, revolving drum mixers,
and open top mixers
The maximum allowable time between obtaining the first and final portions of a
composite sample is _____ minutes. - correct answer 15
